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Tran TTT, Cousin FJ, Lynch DB, Menon R, Brulc J, Brown JRM, O'Herlihy E, Butto LF, Power K, Jeffery IB, O'Connor EM, O'Toole PW. Prebiotic supplementation in frail older people affects specific gut microbiota taxa but not global diversity. MICROBIOME 2019; 7:39. [PMID: 30867067 PMCID: PMC6417215 DOI: 10.1186/s40168-019-0654-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND There are complex interactions between aging, frailty, diet, and the gut microbiota; modulation of the gut microbiota by diet could lead to healthier aging. The purpose of this study was to test the effect of diets differing in sugar, fat, and fiber content upon the gut microbiota of mice humanized with microbiota from healthy or frail older people. We also performed a 6-month dietary fiber supplementation in three human cohorts representing three distinct life-stages. METHODS Mice were colonized with human microbiota and then underwent an 8-week dietary intervention with either a high-fiber/low-fat diet typical of elderly community dwellers or a low-fiber/high-fat diet typical of long-stay residential care subjects. A cross-over design was used where the diets were switched after 4 weeks to the other diet type to identify responsive taxa and innate immunity changes. In the human intervention, the subjects supplemented their normal diet with a mix of five prebiotics (wheat dextrin, resistant starch, polydextrose, soluble corn fiber, and galactooligo-saccharide) at 10 g/day combined total, for healthy subjects and 20 g/day for frail subjects, or placebo (10 g/day maltodextrin) for 26 weeks. The gut microbiota was profiled and immune responses were assayed by T cell markers in mice, and serum cytokines in humans. RESULTS Humanized mice maintained gut microbiota types reflecting the respective healthy or frail human donor. Changes in abundance of specific taxa occurred with the diet switch. In mice with the community type microbiota, the observed differences reflected compositions previously associated with higher frailty. The dominance of Prevotella present initially in community inoculated mice was replaced by Bacteroides, Alistipes, and Oscillibacter. Frail type microbiota showed a differential effect on innate immune markers in both conventional and germ-free mice, but a moderate number of taxonomic changes occurring upon diet switch with an increase in abundance of Parabacteroides, Blautia, Clostridium cluster IV, and Phascolarctobacterium. In the human intervention, prebiotic supplementation did not drive any global changes in alpha- or beta-diversity, but the abundance of certain bacterial taxa, particularly Ruminococcaceae (Clostridium cluster IV), Parabacteroides, Phascolarctobacterium, increased, and levels of the chemokine CXCL11 were significantly lower in the frail elderly group, but increased during the wash-out period. CONCLUSIONS Switching to a nutritionally poorer diet has a profound effect on the microbiota in mouse models, with changes in the gut microbiota from healthy donors reflecting previously observed differences between elderly frail and non-frail individuals. However, the frailty-associated gut microbiota did not reciprocally switch to a younger healthy-subject like state, and supplementation with prebiotics was associated with fewer detected effects in humans than diet adjustment in animal models.
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Warnert EAH, Nayak K, Menon R, Rice C, Port J, Morris EA, Sodickson DK, Sundgren P, Miller KL, Anazodo UC. Resonate: Reflections and recommendations on implicit biases within the ISMRM. J Magn Reson Imaging 2019; 49:1509-1511. [PMID: 30666751 DOI: 10.1002/jmri.26593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 11/07/2022] Open
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Lozovyy V, Richardson L, Saade G, Menon R. 1027: Screening for membrane progesterone receptors: labor associated functional progesterone withdrawal in fetal membranes. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2018.11.1051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schatz S, Falk M, Menon R, Heukamp L, Roeper J, Griesinger F, Tiemann M. Hybrid capture NGS reliably detects a spectrum of clinically significant genetic aberrations in both, primary diagnostics and the relapse scenario. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hengsbach A, Lakis S, Heitz F, Talwar A, Sehouli J, Bommert M, Bertrand M, Ataseven B, Müller JN, Schneider S, Mariotti E, Prader S, Menon R, Leenders F, Heukamp LC, Braicu I, Glöckner C, du Bois A, Heuckmann JM. Liquid biopsy zur objektiven Beurteilung des post-operativen Tumorrestes bei Patientinnen mit fortgeschrittenem high-grade serösem Ovarialkarzinom. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Sutrisna A, Vossenaar M, Poonawala A, Mallipu A, Izwardy D, Menon R, Tumilowicz A. Improved Information and Educational Messages on Outer Packaging of Micronutrient Powders Distributed in Indonesia Increase Caregiver Knowledge and Adherence to Recommended Use. Nutrients 2018; 10:E747. [PMID: 29890670 PMCID: PMC6024872 DOI: 10.3390/nu10060747] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to examine the influence of improved information and educational messages on outer packaging of a micronutrient powder (MNP), locally known as “Taburia”, on knowledge and adherence to recommended use. A community-based cluster randomized controlled trial was conducted among 1149 caregivers and their children aged 6⁻36 months. Caregiver⁻child dyads were randomized by their villages to receive 30 sachets of Taburia with the: (i) original outer packaging; (ii) improved outer packaging; or (iii) improved outer packaging combined with cooking demonstrations. Adherence to Taburia use was assessed through caregiver interviews and observation of unused sachets during home visits; “high” adherence was defined as consuming 13⁻17 sachets in the previous month. Data collection included surveys and focus groups discussions. The majority of caregivers (>80%) preferred the improved packaging because it was more attractive and contained more comprehensive information. Caregivers who received the improved packaging had better knowledge regarding the recommended use of Taburia (p < 0.001) and higher adherence with the prescribed use of Taburia (43% with “high” adherence) (p < 0.001) than those who received the original packaging (29% with “high” adherence). Caregivers who participated in cooking demonstrations generally had better knowledge regarding the benefits of Taburia and recommended use, but this did not lead to higher adherence to recommended use. “Underconsumption” of Taburia (≤7 sachets) was much less prevalent than “overconsumption” (≥23 sachets), and original packaging users were more likely to consume Taburia daily instead of every two days as recommended. We conclude that the design of the outer packaging and comprehensiveness of information provided are important influencers of recommended MNP use by caregivers.
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Menon R, Kumar V, Laskhman I, Nair R. Hemispheric infarct following a cerebellar hematoma: A rare coincidence. Asian J Neurosurg 2018; 13:449-452. [PMID: 29682058 PMCID: PMC5898129 DOI: 10.4103/ajns.ajns_227_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Concomitant cerebral infarction developing soon after a parenchymal intracerebral hemorrhage is a rare occurrence. Usually, these remote site changes follow tumor decompression and are associated with hemorrhagic changes rather than infarcts. We report a case of a fatal malignant internal carotid territory infarct in a hospitalized patient being conservatively managed for a vermian hematoma and discuss the probable pathophysiology. Stroke physicians need to be aware that spontaneous intracerebral hematoma patients have a potential threat of developing large vessel occlusion with malignant cerebral infarcts, especially after surgical decompression. Although the exact pathogenesis is unknown, size of the clot, intraventricular hemorrhage, hydrocephalus, and aggressive reduction of blood pressure appear to be predictive factors.
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Menon R, Chitnis M, Adwankar M, Basrur V, Amonkar A. Tween-80 Alters Natural Resistance of Sarcoma-180 to Bouvardin (NSC 259968). TUMORI JOURNAL 2018; 70:23-7. [PMID: 6710606 DOI: 10.1177/030089168407000104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sarcoma-180 tumour (S-180) exhibits natural resistance to bouvardin (NSC 259968), a protein synthesis inhibitor that also inhibits RNA and DNA synthesis when administered over a range of non-toxic doses using 0.9 % NaCl as a vehicle. However, using Tween-80 as a vehicle, there is a substantial enhancement of cytotoxicity and a subsequent increase in the life span of animals bearing the S-180 tumour. This observation was substantiated in vitro by exposing S-180 cells to 10−6 M bouvardin in the presence and absence of Tween-80. Bouvardin, 10−6 M, in the absence of Tween-80, inhibited the incorporation of [3H]uridine by 46 %, whereas the presence of Tween-80 resulted in a 66 % inhibition of uridine incorporation.
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Chitnis M, Menon R, Adwankar M, Satyamoorthy K. Inhibition of Macromolecular Synthesis in P388 Mouse Leukemia Ascites Cells by Bouvardin (NSC 259968). TUMORI JOURNAL 2018; 71:261-6. [PMID: 4024280 DOI: 10.1177/030089168507100307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bouvardin, a new antineoplastic plant product, inhibits macromolecular synthesis in P388 cells in a dose-dependent manner. At the same concentration of bouvardin, protein synthesis was inhibited to a greater extent than the synthesis of DNA and RNA. There was a reversal of inhibition of both DNA and RNA synthesis after the cells were washed free of bouvardin. However, there was partial reversal of inhibition of protein synthesis when the cells were washed free of the drug.
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van Liere MJ, Tarlton D, Menon R, Yellamanda M, Reerink I. Harnessing private sector expertise to improve complementary feeding within a regulatory framework: Where is the evidence? MATERNAL & CHILD NUTRITION 2017; 13 Suppl 2:e12429. [PMID: 29032622 PMCID: PMC6865944 DOI: 10.1111/mcn.12429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 11/19/2016] [Accepted: 12/05/2016] [Indexed: 11/30/2022]
Abstract
Global recognition that the complex and multicausal problems of malnutrition require all players to collaborate and to invest towards the same objective has led to increased private sector engagement as exemplified through the Scaling Up Nutrition Business Network and mechanisms for blended financing and matched funding, such as the Global Nutrition for Growth Compact. The careful steps made over the past 5 to 10 years have however not taken away or reduced the hesitation and scepticism of the public sector actors towards commercial or even social businesses. Evidence of impact or even a positive contribution of a private sector approach to intermediate nutrition outcomes is still lacking. This commentary aims to discuss the multiple ways in which private sector can leverage its expertise to improve nutrition in general, and complementary feeding in particular. It draws on specific lessons learned in Bangladesh, Côte d'Ivoire, India, Indonesia, and Madagascar on how private sector expertise has contributed, within the boundaries of a regulatory framework, to improve availability, accessibility, affordability, and adequate use of nutritious foods. It concludes that a solid evidence base regarding the contribution of private sector to complementary feeding is still lacking and that the development of a systematic learning agenda is essential to make progress in the area of private sector engagement in nutrition.
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Nanda S, Menon R, Kesavadas C, Kumari S. A pilot study on mapping structural and functional connectivity in early Alzheimer's disease(AD) in comparison to stable mild cognitive impairment (MCI) and healthy controls. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hu ASY, Menon R, Gunnarsson R, de Costa A. Risk factors for conversion of laparoscopic cholecystectomy to open surgery - A systematic literature review of 30 studies. Am J Surg 2017; 214:920-930. [PMID: 28739121 DOI: 10.1016/j.amjsurg.2017.07.029] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 07/10/2017] [Accepted: 07/16/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND The study aims to evaluate the methodological quality of publications relating to predicting the need of conversion from laparoscopic to open cholecystectomy and to describe identified prognostic factors. METHOD Only English full-text articles with their own unique observations from more than 300 patients were included. Only data using multivariate analysis of risk factors were selected. Quality assessment criteria stratifying the risk of bias were constructed and applied. RESULTS The methodological quality of the studies were mostly heterogeneous. Most studies performed well in half of the quality criteria and considered similar risk factors, such as male gender and old age, as significant. Several studies developed prediction models for risk of conversion. Independent risk factors appeared to have additive effects. CONCLUSION A detailed critical review of studies of prediction models and risk stratification for conversion from laparoscopic to open cholecystectomy is presented. One study is identified of high quality with a potential to be used in clinical practice, and external validation of this model is recommended.
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Naik SP, Zade JK, Sabale RN, Pisal SS, Menon R, Bankar SG, Gairola S, Dhere RM. Stability of heat stable, live attenuated Rotavirus vaccine (ROTASIIL®). Vaccine 2017; 35:2962-2969. [DOI: 10.1016/j.vaccine.2017.04.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 02/07/2023]
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Lakis S, Mueller J, Bertrand M, Heuckmann J, Menon R, Netchaeva M, Roeper J, Heukamp L, Griesinger F. Detection of activating EGFR and KRAS mutations in a single liquid biopsy from a patient with adenocarcinoma of the lung using hybrid capture based sequencing. Pneumologie 2017. [DOI: 10.1055/s-0037-1598273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Brahma S, Martínez I, Walter J, Clarke J, Gonzalez T, Menon R, Rose DJ. Impact of dietary pattern of the fecal donor on in vitro fermentation properties of whole grains and brans. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.12.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Menon R, Mueller J, Lakis S, Hube A, Bochtler T, Wesseler C, Griesinger F, Loeffler H, Langenbuch T, Brandts C, Garcia A, Krämer A, Heuckmann J, Heukamp L. Identification of therapeutically targetable genomic alterations in a cohort of patients with CUP using a hybrid-capture based next generation sequencing assay. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32751-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Müller J, Lakis S, Mariotti E, Schneider P, Glöckner C, Leenders F, Hube A, Gullo G, Crown J, Griesinger F, Heuckmann J, Heukamp L, Menon R. Hybrid-capture based sequencing assays to detect novel alterations in BRAF from tissue and liquid biopsies. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw380.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Menon R. Abstract PR316. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492713.12863.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Rosoux A, Pauwels P, Duplaquet F, D'Haene N, Weynand B, Delos M, Menon R, Heukamp LC, Thunnissen E, Ocak S. Effectiveness of crizotinib in a patient with ALK IHC-positive/FISH-negative metastatic lung adenocarcinoma. Lung Cancer 2016; 98:118-121. [PMID: 27393517 DOI: 10.1016/j.lungcan.2016.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 11/30/2022]
Abstract
We report a case of crizotinib effectiveness in a heavily pretreated patient with a metastatic NSCLC initially considered IHC-positive and FISH-negative for ALK rearrangement. After repeated analyses of tumor samples, borderline ALK FISH-positivity (18.5% positive cells) was demonstrated.
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Belliveau J, Menon R. SU-G-TeP3-12: Retrospective Assessment of R2star Using Ultra-High Field MRI in a Rodent Model of Radiation Necrosis. Med Phys 2016. [DOI: 10.1118/1.4957092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shen J, Serby M, Reed A, Lee AJ, Menon R, Zhang X, Marsh K, Wan X, Kavetskaia O, Fischer V. Metabolism and Disposition of Hepatitis C Polymerase Inhibitor Dasabuvir in Humans. Drug Metab Dispos 2016; 44:1139-47. [DOI: 10.1124/dmd.115.067512] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 05/12/2016] [Indexed: 11/22/2022] Open
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Heukamp L, Menon R, Müller J, Lakis S, Netchaeva M, Griesinger F, Eberhardt W, Heuckmann J. 65P NEOliquid: Detection of KIF5B–RET fusions in liquid biopsy samples. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30178-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Menon R, Gonzalez T, Ferruzzi M, Jackson E, Winderl D, Watson J. Oats-From Farm to Fork. ADVANCES IN FOOD AND NUTRITION RESEARCH 2016; 77:1-55. [PMID: 26944101 DOI: 10.1016/bs.afnr.2015.12.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Oats have a long history of use as human food and animal feed. From its origins in the Fertile Crescent, the oat has adapted to a wide range of climatic conditions and geographic regions. Its unique macro-, micro-, and phytonutrient composition, high nutritional value, and relatively low agricultural input requirements makes oats unique among cereal crops. The health benefits of the oats are becoming well established. While the connection between oat β-glucan fiber in reducing the risk of cardiovascular disease and controlling glycemia have been unequivocally established, other potential benefits including modulation of intestinal microbiota and inflammation continue to be explored. Advances in food technology are continuing to expand the diversity of oat-based foods, creating opportunities to deliver the health benefits of oats to a larger segment of the population.
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Polettini J, Dutta E, Behnia F, Saade G, Torloni M, Menon R. Aging of intrauterine tissues in spontaneous preterm birth and preterm premature rupture of the membranes: A systematic review of the literature. Placenta 2015; 36:969-73. [DOI: 10.1016/j.placenta.2015.05.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/13/2015] [Accepted: 05/01/2015] [Indexed: 10/23/2022]
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